The Snap-on Single Lid Crossover Tool Box is constructed of heavy duty Brite-Tread aluminum. It's weather resistant with its closed cell foam gasket and the crown style lid offers superior rigidity due to the full pan double-v stiffener.The dampened gas shocks provide smooth and controlled opening of the lid and the push button handles offer easy opening. The self adjusting strikers will offer years of performance, and the plastic tool tray is removable and helps you to better organize your box.